This is a new old stock Timing belt by Motaquip part number VTB552.
Size is 107 teeth by 22 mm
Applications in the 2003 catalogue are
MAZDA
121 1.1 and 1.3 1990 (chassis 124779) - 1995
121 1.3i 16V 1991 - 1995
323 BF 1.1, 1.3, 1.3i, 1986 (chassis 563074) - 1989
323 BF BA BG BJ 1.3i 8V and 16V 1989 on
323 BF 1.5 1988 (chassis 563074) - 1989
323 BF 1.6 chassis 563074 - 1989
323 BG 1.6, 1.6i 8V and 16V 1989 - 1994
323 BG 1.8i 16V SOHC 1991 - 1994
323 Coupe BA 1.3i 16V 1994 - 1996
323F BA,BJ 1.3i 16V 1994 on
323F BG 1.6, 1.6i 8V and 16V 1989 - 1994
323F BG 1.8i 16V SOHC 1991 - 1994
323P BA 1.3i 16V 1996 - 1998
323 Estate BW 1.3 1986 (chassis 563074) - 1987
323 Estate BF 1.5 1986 (chassis 563074) - 1993
323 Estate BF 1.6, 1.6i chassis 563074 - 1995
Demio 1.3i 16V 1996 on
Demio 1.5i 16V 2000 on
MX3 1.6i 16V SOHC 1991 - 1995